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// Copyright (c) 2010 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// minidump_stackwalk.cc: Process a minidump with MinidumpProcessor, printing
// the results, including stack traces.
//
// Author: Mark Mentovai
//
// Lightly modified to use HTTPSymbolSupplier instead of SimpleSymbolSupplier
#include <stdio.h>
#include <string.h>
#include <limits>
#include <string>
#include <vector>
#include "common/scoped_ptr.h"
#include "common/using_std_string.h"
#include "google_breakpad/processor/basic_source_line_resolver.h"
#include "google_breakpad/processor/minidump.h"
#include "google_breakpad/processor/minidump_processor.h"
#include "google_breakpad/processor/process_state.h"
#include "processor/logging.h"
#include "processor/simple_symbol_supplier.h"
#include "processor/stackwalk_common.h"
#include "http_symbol_supplier.h"
#ifdef ERROR
# undef ERROR
#endif
#ifdef SEVERITY_ERROR
# undef SEVERITY_ERROR
#endif
namespace {
using breakpad_extra::HTTPSymbolSupplier;
using google_breakpad::BasicSourceLineResolver;
using google_breakpad::Minidump;
using google_breakpad::MinidumpMemoryList;
using google_breakpad::MinidumpProcessor;
using google_breakpad::MinidumpThreadList;
using google_breakpad::ProcessState;
using google_breakpad::scoped_ptr;
using google_breakpad::SimpleSymbolSupplier;
// Processes |minidump_file| using MinidumpProcessor. |symbol_path|, if
// non-empty, is the base directory of a symbol storage area, laid out in
// the format required by SimpleSymbolSupplier. If such a storage area
// is specified, it is made available for use by the MinidumpProcessor.
//
// Returns the value of MinidumpProcessor::Process. If processing succeeds,
// prints identifying OS and CPU information from the minidump, crash
// information if the minidump was produced as a result of a crash, and
// call stacks for each thread contained in the minidump. All information
// is printed to stdout.
bool PrintMinidumpProcess(const string& minidump_file,
const std::vector<string>& symbol_args,
bool machine_readable, bool output_stack_contents) {
std::vector<string> server_paths;
std::vector<string> symbol_paths;
for (std::vector<string>::const_iterator arg = symbol_args.begin();
arg < symbol_args.end(); ++arg) {
if (arg->substr(0, 4) == "http") {
server_paths.push_back(*arg);
} else {
symbol_paths.push_back(*arg);
}
}
string temp_path;
#ifdef _WIN32
temp_path.resize(MAX_PATH + 1);
DWORD length = GetTempPath(temp_path.length(), &temp_path[0]);
temp_path.resize(length + 1);
#else
temp_path = "/tmp";
#endif
if (server_paths.empty()) {
server_paths.push_back(
"http://s3-us-west-2.amazonaws.com/"
"org.mozilla.crash-stats.symbols-public/v1/");
}
scoped_ptr<HTTPSymbolSupplier> symbol_supplier;
string symbols_cache = temp_path;
if (!symbol_paths.empty()) {
symbols_cache = symbol_paths[0];
symbol_paths.erase(symbol_paths.begin());
}
// TODO(mmentovai): check existence of symbol_path if specified?
symbol_supplier.reset(new HTTPSymbolSupplier(server_paths, symbols_cache,
symbol_paths, temp_path));
BasicSourceLineResolver resolver;
MinidumpProcessor minidump_processor(symbol_supplier.get(), &resolver);
// Increase the maximum number of threads and regions.
MinidumpThreadList::set_max_threads(std::numeric_limits<uint32_t>::max());
MinidumpMemoryList::set_max_regions(std::numeric_limits<uint32_t>::max());
// Process the minidump.
Minidump dump(minidump_file);
if (!dump.Read()) {
BPLOG(ERROR) << "Minidump " << dump.path() << " could not be read";
return false;
}
ProcessState process_state;
if (minidump_processor.Process(&dump, &process_state) !=
google_breakpad::PROCESS_OK) {
BPLOG(ERROR) << "MinidumpProcessor::Process failed";
return false;
}
if (machine_readable) {
PrintProcessStateMachineReadable(process_state);
} else {
PrintProcessState(process_state, output_stack_contents, &resolver);
}
return true;
}
void usage(const char* program_name) {
fprintf(stderr,
"usage: %s [-m|-s] <minidump-file> [<symbol server URL> | "
"<symbol-path>]+\n"
" -m : Output in machine-readable format\n"
" -s : Output stack contents\n",
program_name);
}
} // namespace
int main(int argc, char** argv) {
BPLOG_INIT(&argc, &argv);
if (argc < 2) {
usage(argv[0]);
return 1;
}
const char* minidump_file;
bool machine_readable = false;
bool output_stack_contents = false;
int symbol_path_arg;
if (strcmp(argv[1], "-m") == 0) {
if (argc < 3) {
usage(argv[0]);
return 1;
}
machine_readable = true;
minidump_file = argv[2];
symbol_path_arg = 3;
} else if (strcmp(argv[1], "-s") == 0) {
if (argc < 3) {
usage(argv[0]);
return 1;
}
output_stack_contents = true;
minidump_file = argv[2];
symbol_path_arg = 3;
} else {
minidump_file = argv[1];
symbol_path_arg = 2;
}
// extra arguments are symbol paths
std::vector<string> symbol_paths;
if (argc > symbol_path_arg) {
for (int argi = symbol_path_arg; argi < argc; ++argi)
symbol_paths.push_back(argv[argi]);
}
return PrintMinidumpProcess(minidump_file, symbol_paths, machine_readable,
output_stack_contents)
? 0
: 1;
}
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